US2401137A - Combined sill brace and draft gear stop - Google Patents

Description

2 Sheets-Sheet 1` www@ -f1\ m E. D. CAMPBELL Filed Feb. 1 19; 19414 lMay 28,. 1946.

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E. D. CAMPBFLI.-`

COMBINED SILL ABRAGE AND DRAFT GEAR STOP 2 Sheets- Sheet 2 Filed Feb. 19, 1944 Edmgnd ATTQRNEY May 28, 1946.

Patented May 28, 1946 Merisi COMBINED SILL BRACE AND DRAFT GEAR STOP Edmund D. Campbell, New York, N. Y., assigner to American Car and Foundry Company, New York, N. Y., a corporation of New Jersey Application February 19, 1944, Serial No. 523,057

s claims. (o1. 2173-51) This invention relates to combined center sill braces and draft gear stops of the prefabricated type.

Castings have generally been used in the past `for center llers and draft gear stops but with the advent of high tensile steels attention has been directed to reducing the weights of cars. Castings are necessarily heavy due to the necessity of large radii and low strength value of the metal. The minimum weight-arrangement is, of course, one in which the component parts of Y the center filler and draft gear stops are directly be prefabricated and applied as a unit to the car v center sills. i

A lurtherrobject of the invention is the p-rovision of a combined center sill brace and draft gear stop unit made up of a minimum number of easily obtained parts.

A still further object of the invention is the provision .of a combined center sill brace and draft gear stop unit having the component parts so formed as to avoid the necessity of special or expensive dies.

These and other objects of the invention Will be apparent to persons skilled in the art from a study of the following description and accompanying drawings,V in which Fig. l is a plan view of the improved unit applied to fabricated center sills;

Fig. 2 is a sectional view taken substantially on the longitudinal center line of Fig. l;

Fig. 3 is a, sectional View taken substantially on line 3-3 of Fig. 1, and

Fig. 4 is a sectional view similar to Fig. 3 but showing a slight modication.

Referring now to the drawings in detail, it will be seen that the improved unit has been shown as applied to center sills of the fabricated or sh belly type. The center sills, as clearly shown, are formed of web plates 2, top angular chord members 4 and inner and outer angular bottom chord members 8 and lll respectively. The top chord members are joined .together by a plate l2 which may be either the c ar oor or the bolster top cover plate, dependent upon the l.type of car.

The combined sill brace and draft gear stop unit, as clearly shown in Figs. 1, Zand 3, is formed in part by rolled angle members I4 of unequal flange lengths. The longflanges it are adapted to closely contact the Web plates 2 of the center sills, while the shoft anges I8 are directed inwardly toward each other. The flanges IS have connected thereto as by welding vertically ex-` tending flanges of angular shapedpressings made frompplate metal. The horizontal anges 22 of these angular shaped pressings are directed inwardly and attached together by means of a filler plate 24 to `which they are securely Welded. Flanges 2t and 22 are of such length and so positioned as to closely contact the flanges of bottom chord angle B, while filler 24 is of such thickness as to have its outer surface substantially `flush with the outer angles of chords 8 and I9. The filler plate and chord angles 8 and lu have their outer surfaces in a substantially common -plane in order that they may receive and closely eni gage either the bolster bottom cover plate or a center bearing plate, neither of which are shown. rlhe forward ends of unequal angles I4 and the angular pressings are located substantially in a common verticalV plane and AhaveV securely attached thereto as by Welding draft `gear back stops 26. These stops are backed up by flanges I6 and I8 of the rolled angles and by llangesZl) and 22 of the angular pressings. order toadditionally reinforce these `stops small horizontally extending ribs 28 and 33 are securely welded to the back stops and to flanges l5 at the top and intermediate portions respectively.

In order to additionally4 tie the rolled angles and angular pressings together and provide a king pin guide, transversely extending tie plates 32 are securely welded tolflanges It, I8, 2li and 22 as Well as to semi-cylindrical `i'nembers 34. 'Ihese semi-cylindrical members are joined together by means of longitudinally extending buttress plates 36 interposed between and `Welded to the semi-cylindrical members and to the ,ller plate 24. The semi-cylindrical members 34 may be formed by pressing or they may be cut from tube sections, or, if desired, 'a complete tubular member may be used, in which v,case thebuttressing plates would be butt-Welded `thereto as are the tie plates 32. It will .be obvious that the rolled angles and angular pressings, as Well as the remaining parts of the unit may be securely welded together and the entire unit applied to the center sills and held. in ,place by any suitable means such as rivets 4l). It will also be obvious that where car capacities require larger or small- .er center sill chord angles 8, the angular pressings may be readily modified and their position However, in

of attachment to flanges I8 changed so as to accommodate changed bottom chords.

- Considerable welding may be avoided by utilizing a rolled channel member as shown in Fig. 4. In this form the channel web 42 is adapted to closely contact and subsequently be secured to center sill webs 2, while the top and bottom flanges ld and 6, respectively, are directed toward each other, When using the channels the same angular pressings and filler of Fig. 3 may be used if desired, but a certain amount of welding may be eliminated if the inner edges of flanges 22 are depressed as at 48 so as to bring the outer surface 50 substantially into the plane of the bottom chords 8 and Il! for reception of the center bearing or bolster bottom cover, whichever is used. In this case the inner edges of flanges 22 are directly welded together instead of beingY Welded to a ller plate as shown in Fig. 3. VThe king pin guide arrangement is identical with that previously described with the yexception that the transversely extending tie plates 52 are of slightly less height than the tie plates 32 of Fig'. 3. yAlso the buttressing plates 35 will be welded directly to the inner edges of flanges 22 instead of to the filler plate,v It will, of course, be obvious that the modified angular pressings of Fig. l may be used with the rolled angles of Fig. 3 if desired. With the construction of Fig. 4 the draft gear back stops 26 are backed up by flanges 2@ and 22 of the angular pressings as well as by web d2 Aand flanges 44 and 4S of the rolled channel member. The portion of the back stop intermediate channel flanges 44 and 4t may be reinforced by buttressing ribs t securely welded to the webs of the Channels and to the back surfaceof the draft gear stops.

It will be obvious from the preceding description that Vthe unit may be formed of rolled and easily Ypressed metal sections connected together to accommodate various sizes ,and weights of chord angles 8. It will also be obvious that even if the bottom chords 8 were omitted, the same unit could still be used merely by shifting the point of attachment ofV flanges I8 and 2i) and possibly lengthening flange22.VV The unit could also be readily applied when se modified to AAR Z section center sills.

While the construction has been described more or less in detail with specific reference to two forms thereof, it will be obvious that other forms, modifications and rearrangements of parts maybe made and all such modified forms Aand rearrangements of parts are `contemplated as fall within the scope of the appended claims dening my invention.

What is claimed is: Y

1. In a car` underframe, spaced apart center sill members formed with vertically extending webs, angle bars located adjacent the lower edge of the Webs and having one flange of each secured to the inner side of said webs and the other flange directed inwardly toward the center` of the sill, rolled members of angular cross-section secured to the inner sides of said webs above said angle bars, said rolled members including Y bottom flanges located in upwardly spaced substantially parallel relationship to said other flange of said angle bars, pressed metal plates of angular cross-section closely engaging the flanges of said angle bars and being weld connected to said bottom flanges of the rolled members in spaced relationship to said center sill webs, draft gear back stops overlapping and welded to the outer ends of said rolled members and pressed metal plates, and reinforcing means secured to said back stops and rolled members rearwardly of said back stops.

2. In a car underframe, spaced apart center sill members formed with vertically extending webs, angle bars located adjacent the lower edge of the webs and having one ange of each secured tothe inner side of said webs and the other flange directed inwardly toward the center of the sill, rolled members of angular cross-section secured to the inner sides of said webs above said angle bars, said rolled members including bottom flanges located in upwardly spaced substantially parallel relationship to said other flange of said angle bars, pressed metal plates of angular cross-section closely engaging the flanges of said angle bars and being weld connected to 'saidrribottom flanges of the rolled members in spaced relationship to said center sill webs, draft gear back stops overlapping and Welded to the outer ends of said rolled members `and pressed metal plates, reinforcing means secured to said back stops and rolled members rearwardly of said back stops, and means connecting said rolled members and pressed metal plates together rearwardly of said reinforcing means and including a king pin guide.

3. In a car underframe, spaced apart center sill members formed with vertically extending webs, angle bars located adjacent the lower edge of the webs and having one ange of each secured to the inner sideof said Webs and the other flange directed inwardly toward the center of the sill, rolled members of channel cross-section having their webs secured to the inner sides of said center sill webs with the bottom flanges directed inwardly in upwardly spaced parallel relationship to said other flange of, said angle bars, pressed metal plates of angular cross-section closely engaging the flanges of said angle bars and being weld connected to the bottom flanges of said rolled members of channel cross-section, and draft gear back stops overlapping and weld secured to theouter ends of said rolled members and pressed metal plates. Y

4. In a car underframe, spaced apart center sill members formed with vertically extending webs, angle bars located adjacent the lower edge of the webs and having one ange of each secured to the inner side of said webs and the other flange directed inwardly toward the center of the` sill, rolled members of channel cross-section having their webs'secured to the inner sides of said center sill webs with the bottom anges directed inwardly in upwardly spaced parallel relationship to said other flange of said angle bars, pressed metal plates of angular cross-section closely engaging the flanges of said angle bars and being weld connected 'to the bottom flanges of said rolled members of channelcross-section, draft gear back stops overlapping and weld secured to the outer ends of said rolled members and pressed metal plates, and reinforcing means secured to said back stops and rolled members intermediate the flanges thereof thereby assisting said flanges in holding said back stops in position.

5. In a car underframe, spaced apart center sill members formed with vertically extending webs, angle bars located adjacent the lower edge of the webs and having one flange of each secured to the inner side of said webs and the other flange directed inwardly toward the center of the sill, rolled members of channel cross-section having their webs secured to the inner Sides of said center sill webs with the bottom flanges directed inwardly in upwardly spaced parallel relationship to said other flange of said angle bars, pressed metal plates of angular cross-section closely engaging the flanges of said angle bars and being weld connected to the bottom flanges of said rolled members of channel cross-section, draft gear back stops overlapping and weld secured to the outer ends of said rolled members and pressed metal plates, and transversely extending brace means secured to said rolled members of channel crosssection and to said pressed metal plates and rigid'- ly connecting the same rearwardly of said back stops.

6. As an article of manufacture, a combined sill brace and draft gear back stop support comprising spaced channels arranged with the top and bottom flanges thereof directed horizontally toward each other, a plurality of metal plates of angular cross-section each having one leg directed vertically and welded to the outer surface of the bottom flange of the adjacent channel in inwardly spaced relation to the plane of the web, means connecting said plurality of metal plates together, and back stops overlapping and secured to the ends of said channels and metal plates, said back stops being held by the top and bottom flanges of said channels in a plane substantially normal to the planes of the channel webs.

7. As an article of manufacture, a combined sill brace and draft gear back stop support comprising spaced channel form members arranged with the top and bottom flanges thereof directed horizontally toward each other, a plurality of metal plates of angular cross-section each having one leg directed vertically and Welded to the outer surface of the bottom flange of the adjacent channel form members in inwardly spaced relation to the plane of the web, means connecting said plurality of metal plates together, back stops overlapping and secured t-o the ends of said channel form members and metal plates, said back stops being held by the top and bottom flanges of said channel form members in a plane substantially normal to the planes of the webs, and plate metal brace means rigidly joining said channels and metal plates rearwardly of said back stops, said brace means including a king pin guide.

8 As an article of manufacture, a combined sill brace and draft gear back stop support comprising spaced channels arranged with the top and bottom flanges thereof directed horizontally toward each other, a plurality of metal plates of angular cross-section each having one leg directed vertically and welded to the outer surface of the bottom flange of the adjacent channel in inwardly spaced relation to the plane of the web, means connecting said plurality of metal plates together, back stops overlapping and secured to the ends of said channels and metal plates, said back stops being held by the top and bottom flanges of said` channels in a plane substantially normal to the planes of the channel webs, and

, buttressing means secured to said back stops and webs of` said channels rearwardly of said back stops and intermediate the flanges of said channels.

EDMUND D. CAMPBELL.

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